The Keithley 3762 switches voltages up to 1000 V peak or currents up to 0.5 A. The current carry capacity of each relay contact is 1 A. Two-pole relays switch both circuit HI and circuit LO for full floating measurements. A Guard input common to all channels is provided for shielding or as a guard driven by a single instrument. Guards may be isolated by removing resistors installed at each input. Multiple switched guard circuits can be achieved by removing the jumper and connecting the circuit Guard to the LO input terminal. The 3760 does not connect to the 6 common buses on the 3706A backplane. Daisy-chaining cards can be achieved by using an output channel.